UV-Visible Spectroscopy Quiz
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Questions and Answers

What is the range of UV-visible spectroscopy?

  • 300 nm to 600 nm
  • 400 nm to 1000 nm
  • 100 nm to 800 nm
  • 200 nm to 800 nm (correct)
  • Which molecules can be analyzed using UV-visible spectroscopy?

  • Molecules with only aromatic conjugation
  • Molecules with no conjugated double bonds
  • Molecules with conjugated double bonds and aromatic conjugation (correct)
  • Molecules with single bonds
  • What does Beer-Lambert's Law state?

  • Absorbance is directly proportional to the product of concentration and path length (correct)
  • Absorbance is directly proportional to concentration but independent of path length
  • Absorbance is inversely proportional to concentration
  • Absorbance is independent of concentration and path length
  • What are the common solvents used for preparing samples for UV-visible spectroscopy?

    <p>Ethyl alcohol or cyclohexane</p> Signup and view all the answers

    What does the symbol ε represent in the Beer-Lambert's Law equation?

    <p>Absorptivity constant</p> Signup and view all the answers

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